Structure of light S=-2 nuclei and hyperon mixing
Structure of light S=-2 nuclei and hyperon mixing
复制标题
轻S=-2核与超子混合的结构
DOI：
10.1103/physrevc.62.034319
复制
发表时间：
2000
影响因子：
3.1
通讯作者：
C. Nakamoto
中科院分区：
文献类型：
--
作者：
T. Yamada;C. Nakamoto
将单玻色子交换模型（OBEM）和夸克簇模型（QCM）相互作用分别应用于[core+ Λ+ Λ]+[core+ Ξ+ N]模型和core+(3q)+(3q)簇模型对轻S=−2核的基态结构进行了研究。本文提出的核心+(3q)+(3q)簇模型是设计用于有限核系统中QCM相互作用的模型。我们发现，对于轻S=−2原子核的基态，obm相互作用预测了双重-Λ超核态，而QCM与束缚的H双重子相互作用预测了一个束缚的H核态，尽管原子核中的H态结构与自由态有很大不同。
The one-boson-exchange-model (OBEM) and quark-cluster-model (QCM) interactions are applied to the structure study of the ground states in light S=− 2 nuclei with the [core+ Λ+ Λ]+[core+ Ξ+ N] model and the core+(3 q)+(3 q) cluster model, respectively. The core+(3 q)+(3 q) cluster model proposed here is a model designed to use the QCM interactions in finite nuclear systems. We found that the OBEM interactions predict a double-Λ hypernuclear state for the ground state of light S=− 2 nuclei, while the QCM interaction with a bound H dibaryon predicts a bound H-nuclear state, although the structure of the H state in nucleus is considerably different from the free one.